1. First, open the browser of BBK learning machine and enter BBK learning machine official website.
2. Secondly, on the BBK learning machine official website, find the seventh grade course, select the course to study, and click the "Download Now" button.
3. Then, BBK learning machine will automatically download the course file and wait for the download to be completed.
4. After the final download is completed, open the text learning function of BBK learning machine, select the article to learn, and then start learning.